Question

Find (f of g)(x) and its domain

Answer 1

\[f(x)=x^3\]
\[g(x)=1-5x^2\]

Answer 2

The domain of f ◦ g is the set of all real numbers x in the domain of g such that g(x) is ... Let f(x) = x x+2 and g(x) = −4 x . Find (f ◦ g)(x) and determine its domain.

http://math.arizona.edu/~rwilliams/math112-spring2012/Notes/Domain_of_a_Composition.pdf
Does that help ^_^

Answer 3

Sort of...can you tell me what I'm doing wrong?
\[f(1-5x^2)=(1-5x^2)^3\]

Answer 4

@jim_thompson5910 plz help her ^_^

Answer 5

Never mind. That's the right answer, but didn't see it on my multiple choice at first. Thanks!